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Assertion & Reason Test: States of Matter (Old NCERT) - NEET MCQ


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8 Questions MCQ Test Chemistry Class 11 - Assertion & Reason Test: States of Matter (Old NCERT)

Assertion & Reason Test: States of Matter (Old NCERT) for NEET 2024 is part of Chemistry Class 11 preparation. The Assertion & Reason Test: States of Matter (Old NCERT) questions and answers have been prepared according to the NEET exam syllabus.The Assertion & Reason Test: States of Matter (Old NCERT) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Assertion & Reason Test: States of Matter (Old NCERT) below.
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Assertion & Reason Test: States of Matter (Old NCERT) - Question 1

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A): Three states of matter are the result of balance between intermolecular forces and thermal energy of the molecules.

Reason (R): Intermolecular forces tend to keep the molecules together but thermal energy of molecules tends to keep them apart.

Detailed Solution for Assertion & Reason Test: States of Matter (Old NCERT) - Question 1
Both the factors, i.e., intermolecular forces and thermal energy decide the state of matter. Balance is required in these two factors.
Assertion & Reason Test: States of Matter (Old NCERT) - Question 2

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A): The temperature at which vapour pressure of a liquid is equal to the external pressure is called boiling temperature.

Reason (R): At high altitude, atmospheric pressure is high.

Detailed Solution for Assertion & Reason Test: States of Matter (Old NCERT) - Question 2
The temperature at which the Vapour pressure of a liquid becomes equal to the external pressure is called its boiling point. As the altitude is high, pressure is low.
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Assertion & Reason Test: States of Matter (Old NCERT) - Question 3

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A): At constant temperature, pV vs V plot for real gases is not a straight line.

Reason (R): At high pressure, all gases have Z > 1 but at intermediate pressure most gases have Z < 1.

Detailed Solution for Assertion & Reason Test: States of Matter (Old NCERT) - Question 3
At constant temperature pV vs V plot for real gases is not a straight line because intermolecular forces of attraction are present in real gases.
Assertion & Reason Test: States of Matter (Old NCERT) - Question 4

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A): Liquids tend to have maximum number of molecules at their surface.

Reason (R): Small liquid drops have spherical shape.

Detailed Solution for Assertion & Reason Test: States of Matter (Old NCERT) - Question 4
Liquid tend to reduce number of molecules or surface tension at there surface, that's why small liquid drops have spherical shape.
Assertion & Reason Test: States of Matter (Old NCERT) - Question 5

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A): At critical temperature, liquid passes into gaseous state imperceptibly and continuously.

Reason (R): The density of liquid and gaseous phase is equal to critical temperature.

Detailed Solution for Assertion & Reason Test: States of Matter (Old NCERT) - Question 5
At critical temperature density of liquid becomes equal to its vapour phase. Due to which liquid changes into gaseous state imperceptibly and continuously.
Assertion & Reason Test: States of Matter (Old NCERT) - Question 6

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A): Gases do not liquefy above their critical temperature, even on applying high pressure.

Reason (R): Above critical temperature, the molecular speed is high and intermolecular attractions cannot hold the molecules together because they escape because of high speed.

Detailed Solution for Assertion & Reason Test: States of Matter (Old NCERT) - Question 6
Gases do not liquefy above their critical temperature even on applying high pressure because above a critical temperature, the molecular speed is high and intermolecular attractions cannot hold the molecules together because they escape because of high speed.
Assertion & Reason Test: States of Matter (Old NCERT) - Question 7

Match the graphs between the following variables with their names:

Detailed Solution for Assertion & Reason Test: States of Matter (Old NCERT) - Question 7
(i) The graph at constant molar volume is called Isochore.

(ii) The graph at constant temperature is called Isotherm.

(iii) The graph at constant pressure is called Isobar.

Assertion & Reason Test: States of Matter (Old NCERT) - Question 8

Match the following gas laws with the equation representing them.

Detailed Solution for Assertion & Reason Test: States of Matter (Old NCERT) - Question 8

A. Boyle's law, at constant T and n.

B. Charle's law, V ∝ T at constant p and n.

C. Dalton's law, pTotal = p1 + p2 + p3 + ... at constant T, V.

D. Avogadro's law, V ∝ n at constant T and p.

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